2238621523 has 8 divisors (see below), whose sum is σ = 2371693392. Its totient is φ = 2105703936.

The previous prime is 2238621503. The next prime is 2238621571. The reversal of 2238621523 is 3251268322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2238621523 - 2⁵ = 2238621491 is a prime.

It is a super-2 number, since 2×2238621523² = 10022852646477679058, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2238621503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7990 + ... + 67387.

It is an arithmetic number, because the mean of its divisors is an integer number (296461674).

Almost surely, 2^2238621523 is an apocalyptic number.

2238621523 is a deficient number, since it is larger than the sum of its proper divisors (133071869).

2238621523 is a wasteful number, since it uses less digits than its factorization.

2238621523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77141.

The product of its digits is 34560, while the sum is 34.

The square root of 2238621523 is about 47314.0732023782. The cubic root of 2238621523 is about 1308.1580708051.

Adding to 2238621523 its reverse (3251268322), we get a palindrome (5489889845).

The spelling of 2238621523 in words is "two billion, two hundred thirty-eight million, six hundred twenty-one thousand, five hundred twenty-three".